1.	Simplify 1 Simplify the following expression: $$ 2\left(3 - 4\right)\left(4 - 1 + 5\times5\right) $$ Correct Answer $$ -56$$ or -56.0000

2.	Simplify 2 Simplify the following expression: $$ \frac{\left(3 - 2\right){2}^{-6}}{2\times6(-6)} $$ Correct Answer $$ \frac{-1}{4608}$$ or -0.000217014

3.	Fractions 1 Simplify the following expression: $$ \frac{-1}{2} + \frac{1}{5} $$ Correct Answer $$ \frac{-3}{10}$$ or -0.3

4.	Fractions 2 Simplify the following expression: $$ \frac{\frac{-3}{6}}{\frac{-5}{4}} $$ Correct Answer $$ \frac{2}{5}$$ or 0.4

5.	Significant figures 1. Write the following to 5 significant figures: 5676.7409 Correct Answer 5676.7 or $$5.6767\times10^{3}$$ 2. Write the following to 4 significant figures: 0.0047987737 Correct Answer 0.004799 or $$4.799\times10^{-3}$$

6.	Standard Form 1. Write the following in standard form to 3 significant digits: 0.0000869958 Correct Answer $$8.70\times10^{-5}$$ 2. Write the following in standard form to 5 significant digits: 0.0461746 Correct Answer $$4.6175\times10^{-2}$$

7.	Significant figures 1. Write the following in preferred standard form to 5 significant digits: 1.007718 Correct Answer $$1.0077\times10^{0}$$ 2. Write the following in preferred standard form to 5 significant digits: 68189.7 Correct Answer $$68.190\times10^{3}$$

8.	Simplify 2 Simplify the following expression: $$ \frac{-3}{1} + \frac{-4}{6} - {\left(-5 - 4\right)}^{2} $$ Correct Answer $$ \frac{-254}{3}$$ or -84.6667

9.	Simplify 1 Simplify the following expression: $$ -1 + -6 - 2\times2 + {\left(-4 - 6\right)}^{2} $$ Correct Answer $$ 89$$ or 89.0000

10.	Simplify 2 Simplify the following expression: $$ \frac{-3}{-3} - -2\times1 + {\left(-5 + 5\right)}^{2} $$ Correct Answer $$ 3$$ or 3.00000